Israel’s Kobi Oren runs ultra-marathons – races that last many days. His latest run in Italy covered 3,417 miles (5,500 km) and took 54 days, averaging 20 hours a day. He was the only one to complete the race. Not only that, he had completed a 3,100 mile race in New York in August.
https://www.ynetnews.com/sport/article/r10vrm2bwe
https://statistik.d-u-v.org/getresultperson.php?runner=97690
https://3100.srichinmoyraces.org/day-46-kobi-oren-reaches-3100-miles